Method TesseractExtractResult

deps/tesseract/api/baseapi.cpp:2690–2733

* Extract the OCR results, costs (penalty points for uncertainty), * and the bounding boxes of the characters. */

 * and the bounding boxes of the characters.
 */
int TessBaseAPI::TesseractExtractResult(char** text,
                                        int** lengths,
                                        float** costs,
                                        int** x0,
                                        int** y0,
                                        int** x1,
                                        int** y1,
                                        PAGE_RES* page_res) {
  TESS_CHAR_LIST tess_chars;
  TESS_CHAR_IT tess_chars_it(&tess_chars);
  extract_result(&tess_chars_it, page_res);
  tess_chars_it.move_to_first();
  int n = tess_chars.length();
  int text_len = 0;
  *lengths = new int[n];
  *costs = new float[n];
  *x0 = new int[n];
  *y0 = new int[n];
  *x1 = new int[n];
  *y1 = new int[n];
  int i = 0;
  for (tess_chars_it.mark_cycle_pt();
       !tess_chars_it.cycled_list();
       tess_chars_it.forward(), i++) {
    TESS_CHAR *tc = tess_chars_it.data();
    text_len += (*lengths)[i] = tc->length;
    (*costs)[i] = tc->cost;
    (*x0)[i] = tc->box.left();
    (*y0)[i] = tc->box.bottom();
    (*x1)[i] = tc->box.right();
    (*y1)[i] = tc->box.top();
  }
  char *p = *text = new char[text_len];

  tess_chars_it.move_to_first();
  for (tess_chars_it.mark_cycle_pt();
        !tess_chars_it.cycled_list();
       tess_chars_it.forward()) {
    TESS_CHAR *tc = tess_chars_it.data();
    strncpy(p, tc->unicode_repr, tc->length);
    p += tc->length;
  }
  return n;
}

/** This method returns the features associated with the input blob. */
// The resulting features are returned in int_features, which must be